I bought my pond as a kit and it came with the flexible 1 1/2 inch black tubing to run from my pump in the skimmer box, underground to the waterfall. I had the pond in for 4 years last year and I damaged that hose accidentally so bit the bullet, dug it up and replaced it with, I thought, the same stuff. I went to Lowe's and bought it from their pond department. I messed with it pretty early and broke it, dang it! I'm trying to use a splice and mend it and having no luck. Does anyone have words of wisdom, do these tubings come in rubber also so they are more flexible? I'm at my wits end, I don't want to pull it up AGAIN!